Replying to Un-rockering skis

I search barred and didnt find anything so unless you link a page stfu. So everyone wants to know how to make their old skis look like a banana. However i have some old bents that i bought in a 179 thinking it would be alright. Turns out there's not enough underfoot and i hate skiing them unless its over 9 inches. I was thinking about putting some concrete blocks on top of the first rocker sections. Good idea? Has anyone done this before?